Study of the kinetics and the influence of Biirr on formic acid oxidation at Pt2Ru3/C

Tripković, A.V.; Gojković, S.Lj.; Popović, K.Dj.; Lović, Jelena; Kowal, Andrzej

doi:10.1016/j.electacta.2007.07.073

Cited by 29 publications

(23 citation statements)

References 40 publications

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“…Bimetallic PtPb prepared by arc-melting has been shown to provide much higher and more stable (over 1000°C) formic acid oxidation activity than Pt [87]. PtPb nanoparticle catalysts also show high activity for formic acid oxidation and more stable performance (over 9 h) than Pt, PtRu, and Pd [88].…”

Section: Anode Catalysts For Electro-oxidation Of Formic Acid Unsuppomentioning

confidence: 97%

“…A study of a Pt-Bi alloy produced by induction melting revealed the importance of dissolution and underpotential deposition (upd) of Bi atoms at the surface, as well as the formation of Bi oxides. Surface modification of PtRu with irreversibly adsorbed Bi atoms increases its activity for formic acid oxidation, apparently by hindering CO adsorption on Pt sites [87].…”

Section: Anode Catalysts For Electro-oxidation Of Formic Acid Unsuppomentioning

confidence: 99%

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The Study of Pt and Pd based Anode Catalysis for Formic Acid Fuel Cell

Uwitonze¹,

Chen²

2017

Chem Sci J

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Detailed investigation of HCOOH electro-oxidation started about five decades ago, with the advent of modern potentiodynamic techniques, driven initially by the purpose of elucidating some of the most interesting and challenging electrode kinetic problems. Many pioneering works that withstood the test of time and the continuous sophistication of surface electrochemistry techniques were published in the 1960s. Stimulated results were obtained, such as: (i) phenomenological interpretation of anodic polarization curves (e.g., Determination of Tafel parameters), HCOOH oxidation on Pd and Pt catalysts; (ii) discovery of the catalytic effect with respect to Pt and Pd for HCCOH oxidation; (iii) investigation of the potential dependent adsorption of HCOOH on Pt and Pd catalysts which are accompanied by a dual pathway mechanism and (iv) formic acid concentration, temperature effects and crossover of nafion membrane.

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Section: Anode Catalysts For Electro-oxidation Of Formic Acid Unsuppomentioning

confidence: 97%

Section: Anode Catalysts For Electro-oxidation Of Formic Acid Unsuppomentioning

confidence: 99%

The Study of Pt and Pd based Anode Catalysis for Formic Acid Fuel Cell

Uwitonze¹,

Chen²

2017

Chem Sci J

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“…But the previous studies have shown that the electrooxidation rate of formic acid at the Pt catalyst is insufficient for the practical application, because the mechanism for formic acid oxidation at a Pt electrode has been widely accepted as taking place via a dual path, which involves a reactive intermediate path and adsorbed CO as a poisoning species [19][20][21]. The mechanism for formic acid oxidation at Pd suspected by Zhou [22] is via a dual path similar to the Pt electrode, as see from the following equations: Direct path:…”

Section: Introductionmentioning

confidence: 99%

Kinetic Study of Formic Acid Oxidation on Highly Dispersed Carbon Supported Pd–TiO2 Electrocatalyst

Gao

et al. 2009

Catal Lett

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The highly dispersed carbon supported Pd-TiO 2 catalyst was prepared by a liquid phase reduction method with intermittent microwave irradiation. The kinetic parameters, such as the charge transfer parameter (a) and the apparent diffusion coefficient (D) of formic acid electrooxidation on a carbon supported Palladium Titanium dioxide (Pd-TiO 2 /C) electrode were obtained under the quasi steady-state conditions. The dependence on temperature of the formic oxidation at a Pd-TiO 2 /C electrode was also investigated and the activation energy (E a ) at different potentials was obtained.

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“…The UPD is an important technique in preparing surfacemodified catalysts. Actually, some elements such as Bi [21], Sb [22] and Sn [19] can deposit on Pt surface via a spontaneous and irreversible chemisorption approach. The surface redox reactions in which the oxidation states of adatoms change are the basis for this irreversible adsorption [17].…”

Section: Introductionmentioning

confidence: 99%